Lathe tool-holder.



PATENTED MAR.- 26', 1901 4 R. E. OOLTON.

LATHE TOOL HOLDER.

APPLICATION IILED JULY 31, 1905.

UNITED- STATES PATENT OFFICE.

R ()STO E. COLTO N, ()F EASTHAMPTON. MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO JOHN L. LYMAN, OF EASTHAB-IPTON, MASSACl-IUSETTS.

LATHE TOOL-HOLDER.

hampton, in the county of Hampshire and State of Massachusetts, have invented a certain new and useful. Lathe Tool-Holder, of

which the following is a specification.

The-objects of my invention are to provide a holder forlathes, laners, chucks, shapers, nd the like, of simp e, durable, and inexpene construction, l11-'Wl1lC-l1 one or more tools y be adjusted to various angles relative to he shank of'thfe' holder, so as to provide for a wide range'ofioperation upon the articles on which work isb'eing done with the tool.

A further object is to provide a tool-holder which su ports the tool not only by thebolt or post t rough which it passes, but also by clamping members provided with transverse groovesin their adjacent faces and thus 'r'o vide for a more rigid holding otthe too by the holder.

' My invention consists in certain details in the construction, arrangement, and combinapanying drawings, in which-- clamping members whic 1 a'ssist in mg t is tool in position at the end of the holder.

tion of the various parts of the device, whereby the objects contemplated are attained, as

hereinafter more fully set forth, pointed outin my claim, and illustrated in the accom- Figure 1 is a plan view of the complete holder with two tools held by, it. Fig. 2 is a ct-the holder with a single tool held lsliow-ing in dotted lines the range u no iit of the tool in the holder. Fig. .3 is a side elevation of the tool with a single tool therein. Fig. %1 is a longitudinal sec-- tional view of the end of the holder in which the tool is inserted, cut on the line 4 4 of Fig. 2. Fig. 5 is a vertiealsectional view of the tool-holder head,.cut on the line 5 5 of Fig. 3. F ig. 6 is a detail pers ective view of the maintain- Fig. 'Z'is a detail plan view illustrating a tool resting at an angle to the longitudinal median line of the holder and hearing at its rear end against the shoulder :25.

Referring to the accompanying drawings,' li 10 to mdf-L have used the referencf-nume'ral (-ate the shauk'of my col-holder, the outer end 11 of which is broadened and is of less thickness than the body hank. In this outer 'end'. extending from the lower to the upper portion of it man Specification of Letters Patent. Application filed July 31, 1905. Serial No. 271,863.

through the position of portion of the :atented March 26, 1907.

opening 12, which is designed to receive a post 13, whirh has the head 14 at its .lower end and which is designed to nonnally-engage the lower portion of the outer end 11 of the shank 10. 'Iluere is a screw-threade(l portion 15 at the upper endbf the post 13,. upon which the nut 16 is screwed for purposes hereinafter made clear. 4

Extending through the central portion of the post 13 is a squared opening-17, designed to admit the tool or tools 18 to beheld by the holder. Encireling the post 13 and immediately above the outer end 11 of the shank 10 is a lower clamping member 19, which is circular in shape and has the slots 20 and 21 in its peripherv in line with each other and on diametrically opposite sidesof it. One side of the clamping member 19 is slightly higher than the opposite side of it, so as to provide for the inc ination of thetool or tools 18 from the front to the rear of this tool, as shown clearly in Fig. 4 of the drawings.

Mounted on the post 18 and immediately above the lower clam ing member 19 is the upper clamping mem er 22, which has the two slots 23 and 24 in its outer periphery at diametrically opposite sides of it. These slots 23 and 24 are designed to be immediately above the slots 20 and 21, res ectively, to form an opening, and theses ots are designed to be in line with the slot 17 post 18, so as to provide an opening in which the tool or tools 18 is to be inserted. When these tools have been inserted in the opening thus formed, the nut 16 is screwed upon the screw-threaded member 15 and the head 14 of the post 13 is drawn rigidly against the lower portion of the outer-end 11 of the shank 10, and the upper clamping member 23 is forced toward the lower clamping member 19, so that these clamping members will rigidly engage the tool or tools between them and prevent any lateral movement of the tool or tools when they are thus rigidl maintained in position by the parts above escribed.

When it is desired to swing the tools from right to left or'from left to right, the nut 16 is unscrewed slightly and the entire post swungin the opening 12 until the desired the tool has been obtained. 'It. will be observed that this result is easily accomplished on account of the arrangement of parts. If two or three tools are necessary v '1 L0 be used, a single tool is easily unsc-rmr-i'ng the nu t I] h hnd wi'lzhd rewing the single; me! .l rm'n he'hween the eln-rnipii'lg incinhers l9 and .32 and another set0lt00lH 'n1l, in its'plsuze. H

25in u i-runsverm-e shoulder which extends tl'lrnughout lhe width. ml the bread nnd l'hin. outer end l 01' the shank 10 In virtue ul this shoulder 25 extending f'hrmigrl'iout the width of the snid hrnnd end I 1 it will be seen that the rear ends M tools nn-iy bean-ringed to bear against ihe shoulder when a great amounfi of lateral strain is to be placed on the forward portions .01" the tools, and this when the tools are'posibioned in alinemeni; with the longitudinal median line of the shank 10 and also when they are arr-ringed at Various angles be said .xnedien line. The placing-0f the rear ends of the tools again-s!- l he shoulder 25,- as stated, prevents casual movement of the toels when tliey are subjeet'ed to great'lutem-l pressure.

In practical use the ease. with which these results are attained and the firmness with whichthe tools are maintained in position removed by f I .I, .4 "I are very advantageous and desirable, and the results obtained, over that {if the 0rd innr v l'O0l-l'10l(lC-IS;fll6 desirable. i

Ln, u tool-holder, the eoinbinut-im'i of a shank having u em'ii'nral'ively broad and thin outer end in which a circular opening, and hlsn having a s ln'iulder' 25 eirtending throughout the width of said broad and thin outer end at the inner end it'hereof and adapted for the engagement efutherea-r ends ell-eels 'plared M. various angles-of; inelination to the lnngritudilml'rnedigandine of'tlle shank, a post, of circular form in c-resssection, arranged and adajp-tedlo'be turned-in the circular opening in thebread and thin end of the shank and havinge di nnetiCal opening arrangednheve the sh neand means on the post for heldi'ngs toql restingin the dimnetrieal opening ofthe-pn-st. l 

